The latest issue of Varmint Hunters magazine has an article comparing BC of bullet manufactures against real world testing. This is an almost impossible task when you think about it. Just think of the variables. OK now sit down and take a deep breath. So now that you head is spinning the author did, in a small universe, make a case. Results; Sierra and Hornady good, Nosler yuck. You just can let the marketers have any say so. But more than that, and the reason this is here under "varmint scopes, is that MPBR is not viable for small targets (vial areas) after 250 yes and less. This is not the case for large with a vital area of 10". The long distance of 500 yds the BDC reticle just runs out of usefulness. I don't know the reality of the Horus reticle, being that a small compute at the site and need of SFP are required. Hopefully one of you will advise. AnywayLike the Book of James ZI started on one topic and wandered into another. Moral Don't believe manufacturer's numbers, but who didn't know that. Oh and we still need clicks.

JBM internet program gives good bc if you use the Litz option, which will also give you spin drift. Most programs give calculated bc from some type of on going correction to the g1 as it decreases in velocity. Snipershide has an ongoing discussion as to bc and point mass changes and their effects in the marksmanship section. Patagonia does not believe these systems are accurate and uses drag functions based on velocities at different distances, then uses curve fitting techniques to find the actual drops. What does this all mean to the ave. shooter. Not much if they aren't chronographing and using sd and spread.

I love little league baseball-- it keeps the kids out of the house Yogi Bera

Litz details in his book, Applied Ballistics for Longrange Shooting, the tests they did on a variety of popular bullets. I only use one Nosler bullet, which is the .308 165 gr. Accubond, and it did have a lower BC - verified by my own shooting. I still find it to be a great bullet for hunting elk, deer and antelope, but wish Nosler's figure had just been more accurate in the first place.

You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot delete your posts in this forumYou cannot edit your posts in this forumYou cannot create polls in this forumYou cannot vote in polls in this forum